Can someone please help me solve this and tell me what I am solving for?

Kirk VanHouten, who has been married for 16 years, would like to buy his wife an expensive diamond ring with a platinum setting on their 30-year wedding anniversary. Assume that the cost of the ring will be $32,548 in 14 years. Kirk currently has $4,600 to invest. What annual rate of return must Kirk earn on his investment to accumulate enough money to pay for thering